Not really sure where the best place to post this is. I poked around for a bit to find a "contact us" email address, couldn't find one, came here instead.
Anyway. Whenever
https://digitalcomicmuseum.com/stats.php is the page being displayed, the "donate" link at the top of the page is bad. See below. Note the extra "s" in "https" at the start.
httpss://www.paypal.com/cgi-bin/webscr?cmd=_xclick&business=support@digitalcomicmuseum.com&item_name=Support%20Digital%20Comic%20Museum&page_style=Primary&no_shipping=1&cn=Username%20on%20Digital%20Comic%20Museum?&tax=0¤cy_code=USD&bn=PP-DonationsBF&charset=UTF-8